Users Guide

iDRAC access via Host OS
Using Dell’s PowerEdge Servers, you can manage the hardware or the firmware of a device through iDRAC by configuring an
iDRAC dedicated network. Through the dedicated network port, you can access the iDRAC interfaces such as GUI, WSMAN,
RACADM, and Redfish client.
The prerequisite to manage the hardware or the firmware is to have a dedicated connection between a device and the
supported iDRAC interface. Using the iDRAC access via Host OS feature, you can connect to an iDRAC interface from an OS
IP or host irrespective of the connection between a device and an iDRAC dedicated network. This feature allows you to monitor
the hardware or firmware even if the iDRAC is not connected to the servers.
You can select any of the following sub features to enable the iDRAC access via Host OS:
● Access via GUI, WS-man, Redfish, Remote Racadm
● In-band SNMP Traps
● Access via SNMP Get
If you select iDRAC access via Host OS, all the sub features are selected by default. If you want to select any one of the
individual sub feature, you can select a particular feature and enable it.
In-band support for iDRAC SNMP alerts
Using iDRAC, an out-of-band server management and monitoring tool, the SNMP traps/alerts can be recorded in the log.
However, from a host OS systems management using in-band agent perspective, the preference is more on the SNMP alert
received from the host OS than the traps received from iDRAC. When an SNMP alert is received from iDRAC, it would be
challenging to determine the source of the alert as it is from an iDRAC IP and not the system IP.
Starting from 14th generation of servers, all events that have the "SNMP Trap" option as the target (in the Alerts page or in the
equivalent RACADM or WSMAN interfaces) can be received as SNMP trap through the OS using the iDRAC Service Module.
For iDRAC firmware 3.0.0 or later, this feature does not require iSM LCL replication feature to be enabled. Only the events
logged in the LC log after the iDRAC Service Module was installed are sent as SNMP traps.
Using iDRAC Service Module, you can receive SNMP alerts from the host OS which is similar to the alerts that are generated by
iDRAC.
NOTE:
By default this feature is disabled. Though the In-band SNMP alerting mechanism can coexist along with iDRAC
SNMP alerting mechanism, the recorded logs may have redundant SNMP alerts from both the sources. It is recommended
to either use the in-band or out-of-band option, instead of using both.
NOTE: You can use the In-band SNMP feature on 12th generation of Dell’s PowerEdge Servers or later with a minimum
iDRAC firmware version 2.30.30.30.
Enable WSMAN Remotely
Currently with the WMI information feature, you can connect to the host Microsoft Windows WMI namespace to monitor the
system hardware. The WMI interface on the host is enabled by default and you can access it remotely. However, if you wish to
access the WMI interfaces using WINRM’s WMI adapter, you have to enable it manually as it is not enabled by default. Using
this feature, you can access the WINRM WMI namespaces remotely by enabling it during installation.
This feature can be accessed using PowerShell commands. The commands used are as follows:
Table 9. Enable WSMAN Remotely
Command Description
Enable-iSMWSMANRemote —Status enable —
Forcereconfigure yes —Createselfsigncert yes —
IPAddress <IP address> —Authmode Basic, Kerberos,
Certificate
Enabling and configuring the remote WSMAN feature
Enable-iSMWSMANRemote —Status get
Viewing the status of remote WSMAN feature
Enable-iSMWSMANRemote —Status disable
Disable remote WSMAN feature
32 iDRAC Service Module monitoring features